JPH08183349A - Axle driving method and its device - Google Patents

Abstract

PURPOSE: To provide a kind of wheel driving method and apparatus capable of rotating rotors in an induced electric field at a time with or without associated rims of outer rings by causing a clutch device to move axially parallel to a wheel central axis. CONSTITUTION: A current of a battery is transmitted from a wire 41 to an annular printed circuit board 43 through a carbon brush 42 to drive and rotate an outer rim 12 by means of the current. The current is then transmitted from a conductive piece of an inner layer to the coil 4 of an inner rim 11 through a conductive piece of an outer layer. Then the coil 4 produces lines of magnetic force and generates an electric field, together with a plurality of permanent magnets 22 on a stator 2. Since the stator 2 is fixed on a fixed part 51, the coil 4 gains the current after the inner rim 11 is rotated by the repulsive force of the electric field. To drive the outer rim 12 against the inner rim 11, a pull wire 67 is released and the clutch parts 81, 611 of a clutch ring 8 are brought in mesh with each other to rotate a main driving axle 61, with the power of the main driving axle 61 transmitted to a driven wheel 62 in the outer rim 12 via an idle gear 64.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel driving method and a device therefor, and more particularly to a kind of wheel whose center axis does not rotate and a clutch device therefor.

[0002]

BACKGROUND OF THE INVENTION The present invention relates to a device for driving the rotation of a wheel by an induction electric field in the wheel without rotating the central axis of the wheel, and the present inventor can perform a kind of heat radiation well and is suitable for low speed driving in an urban area. Alternatively, a patent application for a wheel more suitable for climbing than an electric vehicle up to that point was filed in Japanese Patent Application No. 231970 on August 23, 1994.

In the proposed invention, the inventor solves the drawbacks of conventional electric wheels with one completed design. For example, a commutator is formed by one rotatable annular printed circuit type conductive plate, and a coil of an outer ring is made to obtain a current. This is a design that has never existed before and does not cause magnetic interference between the stator and rotor, and
When necessary, for example, when pushing manually with dead battery,
The rotor in the boss is rotated at the same time, and one clutch device is provided in a stationary portion of the stator and the central shaft, whereby the stator is rotated or non-rotated. The above-mentioned proposal was a clutch system in which one drum type brake component is used as a clutch device, the stator is made non-rotating, and the stator is controlled by a kind of radial operation.

[0004]

SUMMARY OF THE INVENTION The present invention is particularly directed to the clutch device used in which axial movement occurs parallel to the wheel center axis, which causes the rotor in an induced electric field to move to the outer ring rim (outer rim). An object of the present invention is to provide a kind of wheel driving method and a device therefor capable of rotating all together with or without.

[0005]

SUMMARY OF THE INVENTION The present invention is a wheel drive device in which a wheel is driven by a boss that rotates around a non-rotating central axis, and the wheel is supported by the boss.
A stator mounted on the fixed part of the central axis, including a plurality of permanent magnets of different poles provided in the radial direction in parallel with the central axis, and a shaft parallel to the central axis. A conductive component fixed on the fixed component of the central axis in a direction, and an annular printed circuit board having a body of an insulating material, having two sets of conductive piece groups distributed in an inner layer section and an outer layer section on its side surface, Each of the conductive pieces of the inner layer is individually connected to any one of the conductive pieces of the outer layer, and the conductive piece group of the inner layer is in contact with the conductive parts and is pivotally provided on the central axis to form a boss. The rim has a plurality of radially distributed coils corresponding to the permanent magnets therein, and forms a rotor corresponding to the stator. Each set of coils is a group of conductive pieces on the outer layer of the circuit board. Which is connected to one of the That is, the central axis is rotated on the central axis at the same time to accelerate the heat radiation of the coil in the rim by the rotating air flow, and the power supply part is on the fixed part of the central axis and the electric power is supplied from the conductive part. It is transmitted to the coil inside the rim through the circuit board, and when the coil acquires the electric current, it generates an electric field with the permanent magnet on the stator, which is used to drive the rim to rotate around the central axis. The rim includes an outer rim and an inner rim that are respectively pivoted on the central axis, the inner rim is provided with the plurality of coils therein, and the inner rim is The outer rim is fixed to the circuit board and rotates together, the outer rim is a boss for supporting a wheel, and a reduction mechanism having a driving wheel and a driven wheel is provided between a side surface of the inner rim and the outer rim. The inner rim transmits power to the drive wheels of the reduction mechanism. Further, the outer rim is connected to the driven wheels of the speed reduction mechanism, and thus the power for rotating the inner rim is transmitted to the outer rim after being decelerated through the speed reduction mechanism. Fastened to a clutch ring pivoted above, the clutch ring is rotatable about the central axis and is provided with a clutch part having two parts, one part of which is provided in the clutch ring and the other part of which is provided. Is provided on the main drive wheel of the reduction mechanism, and the clutch ring is connected to the main drive wheel by the clutch parts to transmit the power, or alternatively, the clutch ring and the main drive wheel are separated to transmit the power. Instead, one drive component is provided to control the operation of the clutch component described above.

According to the present invention, the clutch ring is capable of reciprocating parallel to the axial direction of the central shaft, and one stop ring is provided adjacent to the clutch ring so that the clutch ring can move in the axial direction at the same time. It is assumed that an elastic component is provided between the stop ring and the fixed component on the central axis when the stop ring is moved, and the stop ring is compressed after the movement to return to the original position.

In the present invention, the drive component is a lead line,
In addition, a part of the clutch component therein is a lock groove and the other part is a convex pin.

The wheel driving method of the present invention shall include the following steps a to 1: a. The central shaft is fixed and non-rotatable, and a fixing part is attached to the central shaft; b. Radially spaced permanent magnets of different poles on one stator; c. Providing a stator around a non-rotating central axis; d. A group of radial conductive pieces of the outer layer is built in the main body of the annular printed circuit board, and a group of conductive pieces of the inner layer is exposed and arranged on the annular printed circuit board. Articulating with one of the outer conductive strips; e. Fixing the conductive part on the fixed part of the central axis, and contacting the conductive part with the conductive piece group of the inner layer on the annular printed circuit board parallel to the axial direction of the central axis; f. Pivoting an outer rim formed of a boss on a central axis; g. The inner rim built into the outer rim is pivoted on the central axis,
At the same time, a plurality of coils are installed inside the inner rim, each coil corresponding to each permanent magnet of the stator, and each electric field is generated; h. A reduction mechanism having a driving shaft and a driven wheel is provided between the outer rim and the inner rim; i. Clutch parts are provided to be respectively connected to the inner rim and the driving wheels of the reduction mechanism; j. Secure the driven wheels of the reduction mechanism on the outer rim; k. Fixing the annular printed circuit board to the side surface of the inner rim, and connecting each coil inside the inner rim with one of the conductive pieces on the outer layer of the annular printed circuit board; l. Electric current is supplied to the conductive parts, transmitted to the coil inside the inner rim via the annular printed circuit board, and an electric field is generated in the permanent magnet on the corresponding stator, and at the same time, the outer rim is driven and rotated via the clutch parts and the speed reduction mechanism. Let

In the wheel driving method of the present invention, one surface joint may be fixed to the side surface of the outer rim, and the outer rim can be driven by an external force via the surface joint.

[0010]

The method and apparatus provided by the present invention is applied in a wheel drive device of an electric vehicle, and a clutch device for transmitting power therein is axially operated. According to the present invention, a stator and a fixed component of a central shaft are coupled to each other, and a plurality of permanent magnets are arranged on the outer circumference of the stator. An inner rim that can rotate around a central axis is provided outside the stator, and a large number of induction coils are provided in the inner rim to form a rotor. An electric field is applied to generate an induction electric field in the magnet of the stator to rotate the inner rim. Another outer rim is provided on the outer circumference of the inner rim, and the outer rim is used for fixing to the tire when necessary. The center of the inner rim is fixed to the clutch ring on the central axis. The clutch ring can rotate not only around the central axis but also can reciprocate together with the inner rim parallel to the axial direction of the central axis. The power of the inner rim is propagated to the outer rim by one reduction mechanism, the main driving wheel of the reduction mechanism is provided on the central axis, and the clutch ring makes contact there with the clutch parts, and the power of the inner rim is the clutch parts. Is propagated to the outer rim via. Naturally, this clutch component cannot transmit power when released.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In a relatively good embodiment of the present invention, FIGS.
As shown in FIG. 1, the stator 2 mounted on one central shaft 5 is included. On this stator 2, a plurality of permanent magnets 22 having different poles are arranged at intervals in the radial direction. Furthermore, a plurality of conductive parts, the best one is carbon brush 42
Is a fixed part 51 of the central axis 5 parallel to the central axis and in the axial direction.
Fixed on top. The central axis is best considered to be the real axis, thereby slightly reducing the diameter of the central axis, but still having the necessary rigidity. An embodiment of the device according to the invention further comprises an annular printed circuit board 43 which is fixed on the rim and is coaxial with the rim on the central axis 5. On the annular printed circuit board 43, two sets of conductive pieces 46, 47 (see FIGS. 3 and 4) distributed in the radial direction are separately provided in the inner layer area and the outer layer area on the side surface of the annular printed circuit board 43. Each one of the conductive pieces 46 of the inner layer is exposed to one side of the body 44, and each of the insulating body 4 is exposed.
The conductive piece 47 of any one of the outer layers, which is hidden inside 4, is connected to the conductive piece 46 of the inner layer, and the conductive piece 46 of the inner layer is contacted with the carbon brush 42. The present embodiment separately has a rim 1 which is a bearing and which is pivotally provided on a central shaft 5 and serves as a boss to support a wheel. Inside the rim 1, a plurality of sets of radially distributed permanent magnets 2 are provided.
2 corresponding coils 4 are provided, thus forming the rotor 3 facing the stator 2, and each set of coils 4 is connected to one of the outer conductive pieces 47 of the annular printed circuit board 43, The rim is fixed to the annular printed circuit board 43 and can rotate at the same time on the central axis 5, and at the time of rotation, the coil 4 in the rim accelerates heat dissipation by the airflow during rotation of the rim body. The device of the present invention has one power supply part 41, for example, one electric wire, is attached to the fixed part 51 of the central shaft 5, sends electric power to the carbon brush 42, and further through the annular printed circuit board 43 to the inside of the rim. The permanent magnets 22 on the stator 2 generate an electric field that can be transmitted to the coils 4 and when these coils 4 acquire an electric current, causing the rim 1 to rotate about the central axis 5.

The above-described embodiment is the most basic and typical device, in which the current supplied from the central axis section is applied to the carbon brush 42.
And the annular printed circuit board 43 feeds the coils in the rotating rotor and the device described above is not difficult to manufacture and assemble.

The aforementioned rim can also be co-composed of an inner rim and an outer rim, which makes the device of the invention particularly suitable for low speed vehicles such as wheelchairs and bicycles. The speed reduction mechanism shown in FIG. 1 is still composed of planetary gears, but as will be understood by those who are familiar with the dynamics, the so-called speed reduction mechanism of the present invention is a gear type, belt type, or other various types. The speed reducing mechanism may be the most suitable one, and is not limited to the embodiment shown in FIGS. 1 and 2. The rim of the above-mentioned device of the present invention may include one outer rim 12 provided on the central axis and the inner rim 11 provided by the bearing 72, and the inner rim 11 is provided therein. It is used to install a plurality of coils 4, and the inner rim 11 is fixed to the annular printed circuit board 43 and can rotate together. The outer rim 12 is a boss that supports the wheels. The speed reducing mechanism 6 described above is also provided between the outer rim 12 on the side surface of the inner rim 11, and the drive shaft 6 provided on the bearing 73 is provided in the speed reducing mechanism.
1, the idle gear 64 on the connecting rod 63, and the outer rim 12
An inner driven wheel 62 is provided, the main driving wheel 61 of the speed reduction mechanism 6 is driven by the inner rim 11 (via a clutch device, which will be described later), and the outer rim 12 is driven wheel of the speed reduction mechanism 6. Therefore, the power for rotating the inner rim 11 is transmitted to the outer rim 12 after the idle gear 64 of the reduction mechanism 6 is decelerated.

A feature of the present invention is that the inner rim 11 is fixed to a clutch ring 8 provided on the central shaft 5, and the clutch ring 8 is supported by a bearing 71 to rotate around the central shaft 5. To do. The device according to the invention has one clutch part, which has two parts, one part of which is provided on the above-mentioned clutch ring 8 and the other part of which is the drive shaft of the reduction mechanism 6. The clutch ring 8 is connected to the driving shaft 61 to form an integral unit for transmitting power, or the clutch ring 8 is separated from the driving shaft 61 and does not transmit power. The operation of the above-mentioned clutch component is controlled by one driving component, for example, the pull line 67 and the spring 66 in FIGS. Positively, any clutch component is constructed by using the conventional electromagnetic clutch piece, and the necessary driving component to be combined at this time is a power switch or the like. The embodiment of the clutch component shown in FIGS. 1 and 2 is a kind of mechanical structure, in which the clutch ring 8 is supported by a needle roller bearing 71 and can rotate about the central axis 5. Instead, the reciprocating movement can be performed at the same time in parallel to the axial direction of the central axis 5. One stop ring 65 is adjacent to the left side of the clutch ring 8 and moves in unison with the clutch ring 8 in the axial direction. An elastic part is provided between the stop ring 65 and the fixed part 51 on the central axis.
For example, a plurality of springs 66 are provided, and after the stop ring 65 is moved to the left by the force of the springs, the stop ring 65 is automatically pressed to return to the original position to the right. In the example of FIGS. 1 and 2, a part of the clutch part is provided in the plurality of lock grooves 81 on the side surface of the clutch ring 8, and another part of the clutch part is provided on the multiple convex pins 611 on the side surface of the driving shaft 61. A clutch component is constructed by a known fitting method of a male component and a female component. At this time, the driving component is a wire drawing line 67 for performing a braking action by a manual type, a hydraulic type, or other force. other than this,
If multiple tongues 82 are provided on the left side of the clutch ring 8, the frictional resistance between the clutch ring 8 and the stop ring 65 will be reduced, which is a subtle problem.

Although the above-mentioned embodiment is simply applied to the electric wheel, another embodiment is to connect the bicycle to the rear wheel of the existing bicycle to drive the bicycle in a traditional stepping drive. It is possible to select whether to use the above method or the method of driving with an induction electric field using the present invention. In this case, as shown by the phantom line in FIG. 1, one intermediate surface joint 7 is fitted to one side of the center of the outer rim 12 of the present invention. The surface joint 7 is a well-known component, and is provided on the center axis of the wheel so that the outer rim side surface is mounted on the sprocket 74 on the outer edge of the surface joint 7.
The outer rim 12 can be driven in a single direction via the. In addition, the device of the present invention uses a battery on the vehicle to supply electricity to the coil 4 in the outer rim to form an electric vehicle to drive the vehicle, and further, a stepping system without supplying current to the coil. It is also possible to rotate the sprocket 74 and drive the outer rim 12 by the force transmitted by the surface joint 7 in a single direction. When the outer rim 12 is driven and rotated by the electric current of the battery, the electric current is transmitted by the electric wire 41 to the annular printed circuit board 43 through the carbon brush 42. Then, the conductive piece 46 of the inner layer of the annular printed circuit board 43 transmits the current to the coil 4 of the inner rim 11 through the conductive piece 47 of the outer layer, and the coil 4 generates the magnetic force line after acquiring the current, and the coil 4 on the stator 2. Since a plurality of permanent magnets 22 and an electric field are generated and the stator 2 is fixed on the fixed component 51 and does not rotate, the inner rim 11 rotates due to the repulsive force of the electric field, and after the rotation, the coil 4 of the inner rim is continuously described above. To obtain the current. If it is desired to drive the outer rim 12 to the inner rim 11, release the pull line 67, as shown in FIG. 1, and fix the clutch part of the clutch ring 8 fixed inside the inner rim 11 and rotating with the inner rim 11. 81 and 611 are engaged with each other to drive and rotate the driving shaft 61, and the power of the driving shaft 61 is transmitted through the idle gear 64 to the driven wheel 6 inside the outer rim 12.
2 to rotate the outer rim 12. If temporary rim 1
If 2 is not rotated, as shown in FIG. 2, the clutch ring 8 and the inner rim 11 are simultaneously moved to the left by the pull line 67 to disengage the clutch parts 81 and 611 so that power cannot be transmitted. Of course, the inner rim 11
If you want to make the non-rotating, just cut off the current supplied from the battery.

[0016]

According to the present invention, when a rotor is formed by a plurality of coils, and the stator is made up of a plurality of permanent magnets on the central axis, the coils acquire a current and generate an induction electric field. Rotate the rotor. After the induction electric field is formed, the coil generates high heat, which may cause burnout of the insulating film or short circuit of the coil.However, in the present invention, since the coil is provided on the rotor, centrifugal air flow in the rotor is generated. Thus, the heat quantity of the coil can be effectively dissipated.

According to the present invention, a rotatable annular printed circuit type electric piece is fixed on an insulating face plate on a side surface of a rim of a rotor,
A carbon brush in which two sets of radial conductive piece groups of an inner layer and an outer layer are provided on the circuit board, and the conductive piece group of the outer layer and the inner layer are passed through, and the conductive piece group of the inner layer is attached to a fixed part of the central axis. In addition to this, contact the conductive parts of the outer layer and each coil on the rotor one by one, by which the current is passed to the annular printed circuit board through the carbon brush,
It feeds each coil on the rotor, thus causing the coils on the rotor to gain current in the best way.

The clutch component of the present invention can control the separation of the inner rim and the outer rim by the axial movement to reduce the total volume, and the clutch operation is reliable and the sliding can be performed like a traditional drum brake. There is no.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is a cross-sectional view similar to FIG. 1 of the present invention, but showing another operational state.

FIG. 3 is a sectional view taken along line 3-3 of FIG. 1 of the present invention, showing an annular printed circuit board.

FIG. 4 is a cross-sectional view similar to FIG. 3 of the present invention, but showing another embodiment.

5 is a sectional view taken along line 5-5 of FIG. 1 of the present invention.

[Explanation of symbols]

1 ... rim 11 ... inner rim 12 ... outer rim 2 ... stator 22 ... permanent magnet 3 ... rotor 4 ... coil 41 ... electric wire 42 ... carbon brush 43・ ・ ・ Annular printed circuit board 44 ・ ・ ・ Main body 45
... Hole 46 ... Inner layer conductive piece 47 ... Outer layer conductive piece 471 ... Outer end 5 ... Center axis 51 ... Fixed part 6 ... Reduction mechanism 61 ... Main driving wheel 611. ..Convex pin 62 ... Driven wheel 63 ... Connecting rod 64 ... Idle gear 65 ... Stop ring 66 ... Spring 67 ...
・ Drawing lines 71, 72, 73 ... Bearings 74 ... Sprocket 8 ... Clutch ring 81 ... Lock groove 82
..Convex edges

Claims (5)

[Claims] 1. A wheel drive device in which a wheel is driven by a boss that rotates around a non-rotating central axis and the wheel is supported by the boss, the apparatus being mounted on a fixed part of the central axis. A stator including a plurality of permanent magnets of different poles provided in a radial direction in parallel to the central axis, and a stator fixed on the central axis in an axial direction parallel to the central axis. An annular printed circuit board having a fixed conductive component and a body of insulating material, and two sets of conductive strips distributed in an inner layer section and an outer layer section on the side surface of the printed circuit board,
Each of the conductive pieces of the inner layer is individually connected to any one of the conductive pieces of the outer layer, and the conductive piece group of the inner layer is in contact with the conductive parts, and is pivoted on the central axis to form a boss. The rim has a plurality of radially distributed coils corresponding to the permanent magnets therein, and forms a rotor corresponding to the stator. Each set of coils is a group of conductive pieces on the outer layer of the circuit board. Which is connected to one of the above, and which is fixed to the circuit board and rotates on the central axis all at once, and accelerates the heat dissipation of the coil in the rim by the rotating airflow. , Transmitting electric power from the conductive component to the coil inside the rim through the circuit board on the fixed component of the central axis, and when the coil acquires a current, generates a permanent magnet and an electric field on the stator, Drive the rim and rotate around the center axis. The rim includes an outer rim and an inner rim pivotally installed on the central axis, respectively, and the inner rim is provided with the plurality of coils therein, In addition, the inner rim is fixed to the circuit board and rotates together, the outer rim serves as a boss for supporting a wheel, and has a driving wheel and a driven wheel between the side surface of the inner rim and the outer rim. A mechanism is provided, the inner rim transmits power to the main driving wheels of the reduction mechanism, and the outer rim is connected to the driven wheels of the reduction mechanism, so that the power for rotating the inner rim is reduced after passing through the reduction mechanism. Transmitting to the outer rim, the device is characterized in that the inner rim is fixed to a clutch ring pivotally mounted on the central axis, the clutch ring being rotatable around the central axis and having a two-part clutch. Parts are provided, part of which is The clutch ring is provided on the main driving wheel of the speed reduction mechanism, and the clutch ring is connected to the main driving wheel by means of a soil recording clutch component to integrally transmit power, or to the clutch ring. A wheel drive device, in which one drive component is provided to control the operation of the above-mentioned clutch component without splitting the main driving wheel to transmit power. 2. The clutch ring is capable of reciprocating parallel to the axial direction of the central axis, and one stop ring is provided adjacent to the clutch ring to move axially in unison with the clutch ring. The wheel drive device according to claim 1, wherein an elastic component is provided between the stop ring and the fixed component on the central axis, and the stop ring is squeezed to return to its original position after being moved. 3. The wheel drive device according to claim 1, wherein the drive component is a draw line, and a part of the clutch component therein is a lock groove and another part is a convex pin. 4. A. The central shaft is fixed and non-rotatable, and a fixing part is attached to the central shaft; b. Radially spaced permanent magnets of different poles on one stator; c. Providing a stator around a non-rotating central axis; d. A group of radial conductive pieces of the outer layer is built in the main body of the annular printed circuit board, and a group of conductive pieces of the inner layer is exposed and arranged on the annular printed circuit board. Articulating with one of the outer conductive strips; e. Fixing the conductive part on the fixed part of the central axis, and contacting the conductive part with the conductive piece group of the inner layer on the annular printed circuit board parallel to the axial direction of the central axis; f. Pivoting an outer rim formed of a boss on a central axis; g. The inner rim built into the outer rim is pivoted on the central axis,
At the same time, a plurality of coils are installed inside the inner rim, each coil corresponding to each permanent magnet of the stator, and each electric field is generated; h. A reduction mechanism having a driving shaft and a driven wheel is provided between the outer rim and the inner rim; i. Clutch parts are provided to be respectively connected to the inner rim and the driving wheels of the reduction mechanism; j. Secure the driven wheels of the reduction mechanism on the outer rim; k. Fixing the annular printed circuit board to the side surface of the inner rim, and connecting each coil inside the inner rim with one of the conductive pieces on the outer layer of the annular printed circuit board; l. Electric current is supplied to the conductive parts, transmitted to the coil inside the inner rim via the annular printed circuit board, and an electric field is generated in the permanent magnet on the corresponding stator, and at the same time, the outer rim is driven and rotated via the clutch parts and the speed reduction mechanism. A method of driving a wheel, which includes the steps a to l described above. 5. One of the surface joints is fixed to a side surface of the outer rim, and the outer rim can be driven by an external force via the surface joint.
The wheel driving method according to claim 4.